public bool VelocityColision(Polygon moving, Polygon stationary, Vector2 velocity)
{
Rectangle roughBounds = moving.Bounds;
roughBounds.Width += (int)Math.Ceiling(Math.Abs(velocity.X));
roughBounds.Height += (int)Math.Ceiling(Math.Abs(velocity.Y));
if (velocity.X < 0)
{
roughBounds.X += (int)Math.Ceiling(velocity.X);
}
if (velocity.Y < 0)
{
roughBounds.Y += (int)Math.Ceiling(velocity.Y);
}
debug_bounds = roughBounds;
if (!roughBounds.Intersects(stationary.Bounds))
{
return(false);
}
float MV = Physics.ConvertToMA(velocity).X;
float MV2 = MV * MV;
List <Vector2[]> movingLines = new List <Vector2[]>();
List <Vector2[]> stationaryLines = new List <Vector2[]>();
for (int i = 0; i < moving.NumberOfSides(); i++)
{
movingLines.Add(new Vector2[] { moving.GetCorner(i), Vector2.Add(moving.GetCorner(i), velocity) });
}
for (int i = 0; i < stationary.NumberOfSides(); i++)
{
stationaryLines.Add(new Vector2[] { Vector2.Subtract(stationary.GetCorner(i), velocity), stationary.GetCorner(i) });
}
float maxMove = (velocity.X * velocity.X) + (velocity.Y * velocity.Y);
bool colid = false;
for (int i = 0; i < movingLines.Count; i++)
{
foreach (Vector2 [] edge in stationary.GetEdges())
{
Vector2?Colision = LocationManager.getIntersectionPoint(movingLines[i], edge);
switch (LocationManager.LinesIntersect_Precise(movingLines[i], edge))
{
case 1:
if (Colision.HasValue)
{
float newdist = LocationManager.getDistanceSquared(movingLines[i][0], Colision.Value);
if (newdist < maxMove)
{
maxMove = newdist;
}
colid = true;
HITEDGE = edge;
}
else
{
Console.Out.WriteLine("? ? ? ?");
}
break;
case 2:
Cot = new Vector2[2][] { movingLines[i], edge };
Vector2[] edgecheck = new Vector2[] { movingLines[i][0], Vector2.Add(movingLines[i][0], Vector2.Multiply(velocity, 100000)) };
int hitcount = 0;
foreach (Vector2[] ec2 in stationary.GetEdges())
{
if (LocationManager.LinesIntersect_Precise(ec2, edgecheck) == 1)
{
hitcount++;
}
}
if (hitcount % 2 == 0)
{
}
else
{
if (Colision.HasValue)
{
float newdist = LocationManager.getDistanceSquared(movingLines[i][0], Colision.Value);
if (newdist < maxMove)
{
maxMove = newdist;
}
colid = true;
HITEDGE = edge;
}
else
{
Console.Out.WriteLine("? ? ? ?");
}
}
break;
default:
case 0:
break;
}
}
}
for (int i = 0; i < stationaryLines.Count; i++)
{
foreach (Vector2[] edge in moving.GetEdges())
{
Vector2?Colision = LocationManager.getIntersectionPoint(stationaryLines[i], edge);
switch (LocationManager.LinesIntersect_Precise(stationaryLines[i], edge))
{
case 1:
if (Colision.HasValue)
{
float newdist = MV2 - LocationManager.getDistanceSquared(stationaryLines[i][0], Colision.Value);
if (newdist < maxMove)
{
maxMove = newdist;
}
colid = true;
HITEDGE = edge;
}
else
{
Console.Out.WriteLine("? ? ? ?");
}
break;
case 2:
Cot = new Vector2[2][] { stationaryLines[i], edge };
Vector2[] edgecheck = new Vector2[] { stationaryLines[i][0], Vector2.Add(stationaryLines[i][0], Vector2.Multiply(velocity, 100000)) };
int hitcount = 0;
foreach (Vector2[] ec2 in moving.GetEdges())
{
if (LocationManager.LinesIntersect_Precise(ec2, edgecheck) == 1)
{
hitcount++;
}
}
if (hitcount % 2 == 0)
{
}
else
{
if (Colision.HasValue)
{
float newdist = MV2 - LocationManager.getDistanceSquared(stationaryLines[i][0], Colision.Value);
if (newdist < maxMove)
{
maxMove = newdist;
}
colid = true;
HITEDGE = edge;
}
else
{
Console.Out.WriteLine("? ? ? ?");
}
}
break;
default:
case 0:
break;
}
}
}
if (colid)
{
maxV = (float)Math.Sqrt(maxMove) / MV;
return(true);
}
debug_AllLines = new List <Vector2[]>();
debug_AllLines.AddRange(movingLines);
debug_AllLines.AddRange(stationaryLines);
return(false);
}